topic DMIP kernel in Intel® Integrated Performance Primitives

DMIP kernel

Kishor_D_ — Mon, 19 Sep 2011 08:58:16 GMT

How can we use DMIP Kernels in functional level implementation? For example in functional level implementation of sobel operation we require kernel to get multiplied with the source image. When we are trying to link the kernel with the source image it is not happening since it is not a base node type. Is it the right way or we should implement only with the symbolic level implementation?

DMIP kernel

Naveen_G_Intel — Wed, 21 Sep 2011 04:39:30 GMT

Hi,

If you refer to article on Deferred Mode Image Processing Framework, it shows how to implement IPP based Sobel edge detector code and how top implement same using DMIP.

Also in the 2^nd code snippet(added below), you can see how to add source image in to DMIP and link with kernel.

[bash]1.	Image Src(pSrcImg, Ipp8u, IppC3); // Source image in DMIP format 
2.	Image Dst(pDstImg, Ipp8u, IppC1); // Destination image in DMIP format 
3.	 
4.	Kernel Kh(idmFilterSobelHoriz,ippMskSize3x3,ipp8u,ipp16s); // Dx operator 
5.	Kernel Kv(idmFilterSobelVert,ippMskSize3x3,ipp8u,ipp16s); // Dy operator 
6.	 
7.	Graph O = ToGray(Src); // To get detected as common expression. 
8.	 
9.	// Compile end execute task 
10.	Dst = To8u(Abs(O*Kh)+ Abs(O*Kv)); 
[/bash]

Regards,

Naveen Gv

DMIP kernel

Kishor_D_ — Wed, 23 Nov 2011 12:06:18 GMT

Naveen,
Above code is working fine.
We also implemented the same using DMIP functional level. We used FilterNode and initialized this node with Kernels.

// Define Horizantal and vertical Kernels
Kernel KH(idmFilterSobelHoriz);
Kernel KV(idmFilterSobelVert);

// Initialize Filter nodes with respective kernels
FilterNode *nd1=new FilterNode();
nd1->Init(&KH);
FilterNode *nd2=new FilterNode();
nd2->Init(&KV);

Regards,
Kishor.

DMIP kernel

Naveen_G_Intel — Thu, 24 Nov 2011 07:11:39 GMT

Thanks for sharing info.

Regards,

Naveen Gv